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National Center for Statistics & Analysis 1 July 18, 2013 Terry Shelton Associate Administrator, National Center for Statistics and Analysis
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National Center for Statistics & Analysis 2 Agenda What is Data Modernization (DataMod)? NASS History Data Mod Project Progress Next Steps
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National Center for Statistics & Analysis 3 What is Data Mod? NHTSA’s Project to: Upgrade the National Automotive Sampling System (NASS) Modernize and consolidate related information technology systems Goal: To affirm NHTSA's position as the leader in motor vehicle crash data collection and analysis, by collecting quality data to keep pace with emerging technology and evolving policy needs.
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National Center for Statistics & Analysis 4 NASS History NHTSA continually reassesses its data needs Designed in the mid-1970’s Designed as one system 75+ planned collection sites 20,000+ planned cases Split NASS in 1988: General Estimates System Crashworthiness Data System
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National Center for Statistics & Analysis 5 Current NASS General Estimates System Probability-based design 60 sites in 26 states About 50,000 sampled crashes annually 100+ variables coded from police crash reports All vehicle types and crash severities Purpose: To monitor large scale trends on the characteristics of the nation’s crash experience.
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National Center for Statistics & Analysis 6 Current NASS Crashworthiness Data System Probability-based design 24 sites in 17 states (subset of GES sites) 600+ variables coded from investigation- based data Towed, passenger vehicle crashes only Purpose: To aid in the development and evaluation of passenger vehicle crashworthiness and occupant protection systems
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National Center for Statistics & Analysis 7 Number of Cases in NASS CDS *2012 Estimated** 2013 Projected
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National Center for Statistics & Analysis 8 Direction from Congress – Modernize NASS Considerations: Is sample size and design sufficient? Is scope too limited? What data needs to be collected? What data do external stakeholders need? Congress appropriates $25M in FY 2012 to modernize NASS.
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National Center for Statistics & Analysis 9 Data Modernization: Major Project Components Survey Modernization Information Technology Modernization & Consolidation Implementation & Operations
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National Center for Statistics & Analysis 10 Data Modernization: Major Project Components Survey Modernization Information Technology Modernization & Consolidation Implementation & Operations
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National Center for Statistics & Analysis 11 Survey Modernization Progress Evaluated external and internal data needs Developed sample conceptual design Collected data for site selection Made decisions on sample design, more to come
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National Center for Statistics & Analysis 12 Solicited Input From Stakeholders on Data Elements for New System
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National Center for Statistics & Analysis 13 Comments From Stakeholders on Data Elements for New System Sample – (expand size, focus on higher severity crashes, newer and older vehicles, improve weights) Scene (scaled diagrams, physical evidence, environmental items, terrain) Vehicle (detailed event data recorder data, velocities, photos) Other (more data in public file, include other vehicles and peds; continue crashworthiness data collection; collect more avoidance data)
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National Center for Statistics & Analysis 14 “New NASS” Sample Design Probability-based Two sample systems to start No intentional overlap between “old” and “new” data collection sites Increased sample scalability (up or down) Flexible modular design More precise estimates
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National Center for Statistics & Analysis 15 Data Modernization: Major Project Components Survey Modernization Information Technology Modernization & Consolidation Implementation & Operations
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National Center for Statistics & Analysis 16 IT Progress Completed independent alternative analysis to determine a high-level approach to system design Began consolidation of system components on a shared environment Launched standardized approach for management of program variables
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National Center for Statistics & Analysis 17 Data Modernization: Major Project Components Survey Modernization Information Technology Modernization & Consolidation Implementation & Operations
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National Center for Statistics & Analysis 18 Implementation and Operations Progress Completed time analysis study Developed variable repository Evaluating platforms for field data collection, e.g., laptops, tablets, toughbooks, iPads Evaluated and field-tested electronic measurement tools – proposing use of Total Station
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National Center for Statistics & Analysis 19 Total Station Data Collection Device Benefits Time savings Accuracy Improved safety for field Produces scalable diagram How does it work? Electronically measures distance and slope to a point No PII data retained Produces standard.CSV file
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National Center for Statistics & Analysis 20 Next Steps What does the new GES look like? What does the new CDS look like? Anticipated outcomes Timeline
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National Center for Statistics & Analysis 21 “New” General Estimates System What’s the Same?What’s Different? Probability-basedNewly selected sites (better reflect current population and crashes) Possibly different size sites All crash severitiesSites with slightly more injury crashes All vehicle typesEnhanced use of technology to sample and capture data from police reports Data from police crash reports Possible use of linked data (e.g., VINs) Increased precision of estimates
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National Center for Statistics & Analysis 22 “New” Crash Data System What’s the Same?What’s Different? Probability basedNewly selected sites Crashes involving a towed passenger vehicles Target sites and crashes with late model year passenger vehicles and injury crashes Collect crashworthiness and basic precrash data Enhanced data collection through new technologies and linked data Investigation-based data collection Flexibility for transition to special study data collection (e.g. trucks, peds, m/c, crash causation, etc.)
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National Center for Statistics & Analysis 23 Anticipated Outcomes from DataMod Fresh sample that better represents the national crash experience Improved data collection efficiency Better access and more data available to users Improved IT efficiency and security Scalable to add sites and cases Flexible design to increase scope
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Data Modernization Timeline 2012 Congress appropriates funds Sample design begins External data needs explored 2013 Sample design complete IT project plan complete IT consolidation and development begins 2014 IT architecture built IT testing and validation Document information on selected sites 2015 Establish sites Hire and train collection and coding staff Pilot test collection Pilot test quality control 2016 Commence data collection in New NASS system
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